What has Michael Buble said about his son's condition?

In April 2017, Bublé said in a statement: “We are so grateful to report that our son Noah has been progressing well during his treatment and the doctors are very optimistic about the future for our little boy.

“He has been brave throughout and we continue to be inspired by his courage.

During the Carpool Karaoke segment, he spoke candidly about his son's condition, saying: "It's so hard to have to acknowledge it 'cause it's so painful to talk about. But, obviously, we got the diagnosis and that was it, man. My whole life ended."

Later he added: "He was three. And, so, listen... It's not good... At first, it was just... It's too hard to talk about it, man. Basically, they just said that it wasn't great and so we took it day by day. My sisters, my mum, my dad, my parents, my wife's family... They all pulled their kids out of school and we all moved."